Definition of arch-rival in English:

arch-rival

Line breaks: arch-rival

noun

The chief rival of a person, team, or organization.
More example sentences
  • After winning the cup competition the team played arch-rivals Swinton High School in the league play-off and won 5-0.
  • But the real test comes when the team faces arch-rivals Bristol this Sunday - and the winner will claim the 2003 title.
  • And with his arch-rivals as chief executive and as chairman, that is unlikely.

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Word of the day anomalous
Pronunciation: əˈnɒm(ə)ləs
adjective
deviating from what is standard, normal, or expected